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Q: What is a line that represents a set of all real numbers in order?
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What is a line in which every point represents a real number?

It is any real line.


Why no order in complex numbers?

Basically you can have an order on a number line, but complex numbers are points on a plane. You can invent some arbitrary order, like which number has the largest real part, or the biggest absolute value, but many of the order properties of real numbers are no longer valid with such definitions.


What is the answer to a line on which every point represents a real number?

It's a number line!!


What is the boundary point of rational numbers?

The boundary of the set of rational numbers as a subset of the real line is the real line.


What kind of line is it called representing the set of real numbers?

The Real line.


Which numbers can be shown only as a line?

Real numbers.


What is the real number represented by a point on a number line?

It is the real number whose length represents the distance from the zero on the line to the point on the line.


Is the equator a real line?

no its an imaginary line that represents the 0° latitude mark on a map.


How can you compare two real numbers on the number line?

Real numbers are compared by distance from zero That means converting numbers to decimals to determine which number is greater and putting these decimals in order from least to greatest or ordering the corresponding real numbers. I posted a link as an example.


What numbers can be found on a number line?

All real numbers.


Give an example of a not real number?

Real numbers are those which can be placed upon a number line stretching to infinity in both directions. To be "not real" you must be unable to do that. We call "not real" numbers "imaginary" numbers. They are numbers which are derived from the square root of -1. If you think about it, what number can be multiplied by itself and you end up with -1. In the real numbers, there isn't one. So we have imaginary numbers. They are written using Euler's notation where i represents the square root of -1. So, to answer your question, i is a "not real" number.


A line on which numbers are assigned to points?

Real Number line